[Application]Ctrl+C终止程序代码

代码如下：

#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <signal.h>
#include <unistd.h>

using namespace std;

void sig_handler( int sig)
{
    if(sig == SIGINT)
    {
        cout<<"ctrl+c has been keydownd"<<endl;
        exit();
    }
}

int main()
{
    signal(SIGINT, sig_handler);
    while()
    {
        sleep();
    }

    return ;
}

编译：

arm-linux-gnueabihf-g++ -o signal signal.cpp